title: WHO confirms human-to-human avian flu transmission.
mesh_terms: D000818:Animals; D001208:Asia / Q000453:epidemiology; D018562:Disease Transmission, Infectious / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D009980:Influenza A virus; D005585:Influenza in Birds / Q000453:epidemiology / Q000517:prevention & control / Q000635:transmission*; D008297:Male; D011200:Poultry; D014944:World Health Organization; D015047:Zoonoses / Q000453:epidemiology / Q000635:transmission